Dear Manuela,

A recepee how to prepare sulfates with a designed d18O, you
can find in my paper publshed in Anal. Chem.(1999)3254-3257.
Unfortunately I have no reprints of this paper, but I can reproduce
my own copy in the case of your difficult access to that journal.
Regards,
Stan


> Date:          Thu, 10 Feb 2000 17:48:10 +0100
> Reply-to:      Stable Isotope Geochemistry <[log in to unmask]>
> From:          Manuela Junghans <[log in to unmask]>
> To:            [log in to unmask]

> Hello all,
>
>  I am looking for sulfates with a high delta 18O value, (around + 20
> promille)for experimental work. I couldn't find any in the literature, so I
> am not sure if there even exist such sulfates. I would appreciate any
> suggestions.
>
> I am also searching for literature on the use of isotopes in studies of mine
> water flow regimes (e.g. stratification of mine waters, convection of mine
> waters). I would be grateful for any references.
>
> Thanks.
>
> Manuela Junghans
>

==============================
Professor Dr. Stanislaw Halas
Mass Spectrometry Laboratory
Maria Curie - Sklodowska University
20-031 Lublin, POLAND
tel: (48 81) 537 6275    fax: (48 81) 533 3669